Sony's new Blu-Ray equipped PlayStations drives won't be able to play Blu-Ray DVD movies, because they couldn't meet all the requirements set out by the cartel that controls Blu-Ray DRM.
Vincent Bautista, Sony's product manager for data storage, told CNET.com.au that due to copy protection issues and lagging software development, the drive will only play user-recorded high-definition content from a digital camcorder, and not commercial movies released under the BD format.
Bautista says that one of two reasons for this is the fact that commercial content is encrypted with High-Bandwidth Digital Content Protection (HDCP), which can only be decrypted using a HDCP-compliant graphics card that offers DVI or HDMI connections. Since there are currently no PCs for sale offering graphics chips that support HDCP, this isn't yet possible.
(via /.)
Update: I misread the original article; it's Sony's drives, not Playstations, that won't play Blu-Rays.